Looking on the internet deeply has found these results:
PCA-based classification is the most popular phrase on the web.
                    The RMSE (2 mm)10 results on the web  | 
                    
                    PCA-based classification1301 results on the web More popular!  | 
                    
|---|---|
                    Some examples and use cases from the internet: | 
                    
                    Some examples and use cases from the internet: | 
                    
                    
  | 
                    
                    
  |